Opteron X2 275 vs Xeon E5420

Primary details

Comparing Xeon E5420 and Opteron X2 275 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2283	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Power efficiency	1.50	no data
Architecture codename	no data	Italy (2005−2006)
Release date	1 October 2007 (17 years ago)	May 2005 (19 years ago)

Detailed specifications

Xeon E5420 and Opteron X2 275 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	no data	2 (Dual-core)
Threads	no data	2
Base clock speed	2.5 GHz	no data
Boost clock speed	no data	2.2 GHz
L1 cache	no data	128 KB
L2 cache	no data	1 MB
L3 cache	12 MB L2 Cache	0 KB
Chip lithography	45 nm	90 nm
Maximum core temperature	67 °C	no data
Number of transistors	no data	233 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.35V	no data

Compatibility

Information on Xeon E5420 and Opteron X2 275 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	no data	2
Socket	LGA771	940
Power consumption (TDP)	80 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5420 and Opteron X2 275. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	+	no data
FSB parity	+	no data

Security technologies

Xeon E5420 and Opteron X2 275 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5420 and Opteron X2 275 are enumerated here.

VT-x	+	no data
EPT	-	no data

Pros & cons summary

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Chip lithography	45 nm	90 nm
Power consumption (TDP)	80 Watt	95 Watt

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Should you still have questions on choice between Xeon E5420 and Opteron X2 275, ask them in Comments section, and we shall answer.

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